Would I be able to port my actual emuNAND 9.4 (sysNand 9.2) in a future emuNAND 9.4 when I've been downgraded the sysNAND to 4.5? I want to play games while I wait for the downgrade files but I would like to keep the savegames.
We don't know the definite answer to this yet because no one has been able to downgrade and will not be able to until Gateway releases the file that is needed for it.
If I was to hazard a guess, I would say yes as it is the same 3DS that you are using...but that's not definite.